formbook | 4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 03:05

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General

Target

4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe
Size

646KB
MD5

ac22c06dc5935fa505a8a22b0dfb11fc
SHA1

373930e97a443221ac51cbbe5619d756d5d1d178
SHA256

4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910
SHA512

2d7352923c4c93890e2501b093a5713021b4fcda14b95bceff3dd94a6f4c551dfca50ca5fd217c03460b14303ccb436aed49f0ebfe9f7d5dc52ae26c796a9012
SSDEEP

12288:iul9Z7a0GM4Rb9So1JELBYaKMwHI/IZ5/tAV2tYUjPtfRXPjvFqpp:rawLAIQZ4VMF1RXPjtqX

Score

10^/10

formbook a02d discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a02d

Decoy

coplus.market

oofing-jobs-74429.bond

healchemists.xyz

oofcarpenternearme-jp.xyz

enewebsolutions.online

harepoint.legal

88977.club

omptables.xyz

eat-pumps-31610.bond

endown.graphics

amsexgirls.website

ovevibes.xyz

u-thiensu.online

yblinds.xyz

rumpchiefofstaff.store

erzog.fun

rrm.lat

agiclime.pro

agaviet59.shop

lbdoanhnhan.net

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/392-46-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3644-93-0x0000000000140000-0x000000000016F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1444	powershell.exe
3724	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2492 set thread context of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 392 set thread context of 3588	392	RegSvcs.exe	56
PID 3644 set thread context of 3588	3644	raserver.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3804	schtasks.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe
1444	powershell.exe
3724	powershell.exe
2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe
392	RegSvcs.exe
392	RegSvcs.exe
392	RegSvcs.exe
392	RegSvcs.exe
1444	powershell.exe
3724	powershell.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe
3644	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
392	RegSvcs.exe
392	RegSvcs.exe
392	RegSvcs.exe
3644	raserver.exe
3644	raserver.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe
Token: SeDebugPrivilege	3724	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	392	RegSvcs.exe
Token: SeDebugPrivilege	3644	raserver.exe
Token: SeShutdownPrivilege	3588	Explorer.EXE
Token: SeCreatePagefilePrivilege	3588	Explorer.EXE
Token: SeShutdownPrivilege	3588	Explorer.EXE
Token: SeCreatePagefilePrivilege	3588	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 1444	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	89
PID 2492 wrote to memory of 1444	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	89
PID 2492 wrote to memory of 1444	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	89
PID 2492 wrote to memory of 3724	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	91
PID 2492 wrote to memory of 3724	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	91
PID 2492 wrote to memory of 3724	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	91
PID 2492 wrote to memory of 3804	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	93
PID 2492 wrote to memory of 3804	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	93
PID 2492 wrote to memory of 3804	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	93
PID 2492 wrote to memory of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 2492 wrote to memory of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 2492 wrote to memory of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 2492 wrote to memory of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 2492 wrote to memory of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 2492 wrote to memory of 392	2492	4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe	95
PID 3588 wrote to memory of 3644	3588	Explorer.EXE	96
PID 3588 wrote to memory of 3644	3588	Explorer.EXE	96
PID 3588 wrote to memory of 3644	3588	Explorer.EXE	96
PID 3644 wrote to memory of 884	3644	raserver.exe	97
PID 3644 wrote to memory of 884	3644	raserver.exe	97
PID 3644 wrote to memory of 884	3644	raserver.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Users\Admin\AppData\Local\Temp\4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe
  "C:\Users\Admin\AppData\Local\Temp\4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4666a51c6fef5c674a2f9596f5dfc485d0ed15646c1009ae3b586ddc78ed0910.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1444
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vLFsgUYRYQ.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3724
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vLFsgUYRYQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE455.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3804
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:392
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3644
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
470cd7f02085ffaf5119fd90b5261c84

SHA1
5ba4e582e8e5d4f944b45c3b650bbeb0bf981204

SHA256
f0a06ff45790912fe2c6d6e3b703a816477a4a26a924545ce3db4e27dcf001d4

SHA512
cb5d4807a25c9ca888896c0e44854de3ca10e8579984a1ff0c55c684584e4858d9f5418a7003e4a89f435bf6a268dd30d39959ff22e928672f44d1295e67baba

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ciqcrv3e.50b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE455.tmp

Filesize
1KB

MD5
0f6c78f05d8f82b516a4eaf5b9d003f5

SHA1
a4356db88c7b7104a1968a26c93562e1cff724c9

SHA256
8b0a8418cccb4381eb60376b94045dfc4498f4ce2e8b1fba53200648b536d839

SHA512
6ef41587728b7557aae6351779959a9c33bf6f12ec38ada2cb1967457dfba7694c6704c69f538ebf6361c1b3da11abbc141a276c25ef3d71ea5e7e052420e0e6

Download Submit
memory/392-46-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1444-16-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/1444-64-0x0000000075B00000-0x0000000075B4C000-memory.dmp

Filesize
304KB

Download
memory/1444-77-0x00000000078A0000-0x00000000078AA000-memory.dmp

Filesize
40KB

Download
memory/1444-80-0x0000000007AB0000-0x0000000007B46000-memory.dmp

Filesize
600KB

Download
memory/1444-82-0x0000000007A60000-0x0000000007A6E000-memory.dmp

Filesize
56KB

Download
memory/1444-26-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/1444-15-0x0000000001450000-0x0000000001486000-memory.dmp

Filesize
216KB

Download
memory/1444-23-0x0000000005D80000-0x0000000005DA2000-memory.dmp

Filesize
136KB

Download
memory/1444-17-0x0000000005720000-0x0000000005D48000-memory.dmp

Filesize
6.2MB

Download
memory/1444-18-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/1444-83-0x0000000007A70000-0x0000000007A84000-memory.dmp

Filesize
80KB

Download
memory/1444-50-0x00000000064F0000-0x000000000650E000-memory.dmp

Filesize
120KB

Download
memory/1444-92-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/1444-75-0x0000000007E70000-0x00000000084EA000-memory.dmp

Filesize
6.5MB

Download
memory/1444-84-0x0000000007B70000-0x0000000007B8A000-memory.dmp

Filesize
104KB

Download
memory/2492-5-0x0000000004ED0000-0x0000000004EDA000-memory.dmp

Filesize
40KB

Download
memory/2492-2-0x0000000005420000-0x00000000059C4000-memory.dmp

Filesize
5.6MB

Download
memory/2492-1-0x0000000000430000-0x00000000004D6000-memory.dmp

Filesize
664KB

Download
memory/2492-4-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/2492-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

Filesize
584KB

Download
memory/2492-48-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/2492-0-0x000000007527E000-0x000000007527F000-memory.dmp

Filesize
4KB

Download
memory/2492-6-0x0000000005190000-0x000000000522C000-memory.dmp

Filesize
624KB

Download
memory/2492-10-0x0000000007FF0000-0x0000000008068000-memory.dmp

Filesize
480KB

Download
memory/2492-9-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/2492-8-0x000000007527E000-0x000000007527F000-memory.dmp

Filesize
4KB

Download
memory/2492-7-0x00000000053F0000-0x000000000540A000-memory.dmp

Filesize
104KB

Download
memory/3588-98-0x00000000094A0000-0x00000000095F2000-memory.dmp

Filesize
1.3MB

Download
memory/3644-93-0x0000000000140000-0x000000000016F000-memory.dmp

Filesize
188KB

Download
memory/3644-79-0x0000000000BF0000-0x0000000000C0F000-memory.dmp

Filesize
124KB

Download
memory/3644-78-0x0000000000BF0000-0x0000000000C0F000-memory.dmp

Filesize
124KB

Download
memory/3724-36-0x0000000005B10000-0x0000000005E64000-memory.dmp

Filesize
3.3MB

Download
memory/3724-25-0x0000000005A90000-0x0000000005AF6000-memory.dmp

Filesize
408KB

Download
memory/3724-76-0x0000000007430000-0x000000000744A000-memory.dmp

Filesize
104KB

Download
memory/3724-53-0x0000000075B00000-0x0000000075B4C000-memory.dmp

Filesize
304KB

Download
memory/3724-81-0x0000000007630000-0x0000000007641000-memory.dmp

Filesize
68KB

Download
memory/3724-63-0x00000000066C0000-0x00000000066DE000-memory.dmp

Filesize
120KB

Download
memory/3724-74-0x00000000072F0000-0x0000000007393000-memory.dmp

Filesize
652KB

Download
memory/3724-52-0x00000000070B0000-0x00000000070E2000-memory.dmp

Filesize
200KB

Download
memory/3724-85-0x0000000007750000-0x0000000007758000-memory.dmp

Filesize
32KB

Download
memory/3724-88-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/3724-51-0x0000000006460000-0x00000000064AC000-memory.dmp

Filesize
304KB

Download
memory/3724-21-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/3724-24-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download
memory/3724-20-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download
memory/3724-19-0x0000000075270000-0x0000000075A20000-memory.dmp

Filesize
7.7MB

Download